Horseshoe-calk.



G. M. DELANY.

HORSESHOE CALK.

APPLICATION FILED JULY 7,1909.

Patented June 21, 1910.

CHARLES M. DELANY, OF POYNETTE, WISCONSIN.

HORSESHOE-CALK.

Specification of Letters Patent.

Application filed July '7, 1909.

To all whom it may concern:

Be it known that I, CHARLES M. DELANY, a citizen of the United States,residing at Poynette, in the county of Columbia and State of Wisconsin,have invented new and useful Improvements in HorseshoeCalks, of whichthe following is a specification.

This invention relates to horseshoe calks, and has for an object toprovide a calk that can be removably engaged with the shoe and whichwill be provided with a novel form of means for holding it in itsoperative position, but permitting the calk to be removed when worn tobe replaced by a new calk at a minimum expense.

Other objects and advantages will be apparent as the nature of theinventionis better set forth, and it will be understood that changeswithin the scope of the claim may be resorted to without departing fromthe spirit of the invention.

In the drawing, forming a portion of this specification and in whichlike numerals of reference indicate similar parts in the several views:Figure 1 is a bottom plan View of a horseshoe showing the applicationof my invention thereto. Fig. 2 is a section taken on the line 2-2 ofFig. 1. Fig. 3 is a section taken on the line 3-3 of Fig. 1. Fig. 4 is adetail section taken through the toe portion of the shoe showing the toecalk in position prior to the engagement therewith of the shoe clampingkey. Fig. 5 is a detail section taken on the line 55 of Fig. 4. Fig. 6is a detail section taken through the heel end of the shoe showing oneof the heel calks in its operative position. Fig. 7 is a section takenon the line 77 of Fig. 6.

In the drawing, I employ a shoe 1 of ordinary form and I form therein atthe toe end a rectangular slot 2 which is preferably provided withdownwardly and inwardly inclined or beveled walls as illustrated clearlyin Fig. 2. The said slot 2 receives the shank 3 of a toe calk 4 having asubstantially triangular tread portion or tooth 5 of greater width atits upper end than the shank 3 so as to provide oppositely extendingshoulders 6 adapted to engage the bottom face of the shoe at the toe endthereof. The shoe 1 is provided with a stop rib 7 adapted to engage oneof the longitudinal edges of the body portion 5 of the calk so as torelieve the said calk of strain when stress is applied thereto when theshoe is brought into contact with the surface of the ground. The

shoe 1 at the toe end thereof is provided with a pair of spaced wedgeshaped horizontally disposed passages 8 and the shank 3 of the calk isprovided with circularpassages 9 adapted to aline with the passages 8.The shank 3 is provided with vertically disposed elongated slots 10which intersect the passages 9 and communicate therewith and inconnection with the passages 9 the said slots form at the ends of theshank 3 portions 11 which are normally disposed in spaced re lation tothe flared end walls of the slot 2 as shown in Fig. 4 of the drawing.

In order that the calk 4 can be securely held to the shoe 1 I providewedge shaped locking keys 12 that are passed through the passages 8 andthrough the passages 9 formed in the shank 3 of the calk. Incident tothe fact that the keys are of wedge form it will be appreciated thatwhen they are driven into their respective or operative positions theirengagement with the outer walls of the passages 9 will force theportions 11 outwardly and away from each other and into frictionalengagement with the beveled end walls of the slot 2 thus forming anefiective anchor that will prevent displacement of the calk from theshoe.

The bottom face of the body portion 2 of the calk is provided adjacentto the shank 3 with transversely disposed semi-circular recesses 13, thesaid recesses opening onto the side edges of the body portion 5 andbeing arranged to receive the pointed end of an instrument or tool sothat when it is desired to remove the calk after the keys 12 have beenextracted the tool inserted in the recesses 13 can be engaged with thebody portion 5 and force the same upwardly to disengage the portions 11from the walls of the slot 2. In order to prevent the keys 12 fromworking loose in the passages in which they are seated I bend theirreduced ends approximately at right angles and against portions of theshoe as shown in Fig. 1.

The toe calks 14 employed by me are similar in construction to the heelcalks and are each provided with a shank 15 having a passage 16 adaptedto aline with similar passages 17 formed in the heel end of the shoe.The shank 15 is also provided with a slot 17 that intersects the passage16 and forms with the said passage portions 18 similar to the portions11. The passages 16 and 17 are arranged to receive a clamping key 19 ofwedge form and similar in construction to the keys 12 and the said keyis arranged When driven into its operative position to force theportions 18 into frictional engagement With the inclined or beveledWalls of the slot 20. The surface engaging portion 21 of the calk 14: isprovided With tool receiving recesses 22 similar to the recesses 13. Theportion 31 of the calk is adapted to lie at one edge against a shoulder23 similar to the shoulder 7 and employed for the same purpose.

I claim A horseshoe having a slot formed therein, a calk having a shankremovably mounted in the slot, said shank having slots formed thereinadjacent to the ends of the shank, and means removably engaged With theshoe and adapted for frictional engagement With the Walls of the slotsto force the end portions of the shank into locking engagement With theWalls of the slots, the said call: having its upper surface at pointsoutwardly of the said shank formed With recesses Which open directlyonto the bottom of the shoe.

In testimony whereof I aflix my signature in presence of two Witnesses.

CHARLES M. DELANY. Witnesses:

S. L. PI-IINNEY, E. C. THIESSEN.

